Rach Gia Airport (VKG) is a smaller airport in Viet Nam. The one and only destination from here is Ho Chi Minh City (SGN) with Vietnam Airlines.
From VKG, you have 1 airline to 1 different destinations

If you are in need of a rental car, there are several options at VKG.
If you are arriving at Rach Gia Airport and want to go to the city, you have several options. You can take a bus, a taxi, or a rental car. The bus is the cheapest and most convenient option, as it runs frequently. The taxi is more expensive and may take longer depending on the traffic. The rental car gives you more flexibility, but you have to pay for parking and fuel.